George page



`UNITED sTATEs PATENT oEEIcE.

GEORGE PAGE, OF WASHINGTON, DISTRICT OF COLUMBIA.

PISTON FOR PUMPS, &o.

Specification of Letters Patent No.`5,071, dated April 1'7, 1847.

To all whom t may concern:

Be it known that I, GEORGE PAGE, of th city of Washington, in theDistrict of Columbia, have invented new and useful Improvements inPumps, and that the following is a full, clear, and exact description ofthe principle or character lwhich distinguishes them fromV all otherthings before known and of the manner of making, constructing, and usingthe same, reference be ing had to the accompanying drawings, making partof this specification, in which- Figure l is an sometrical view of thescantling that forms the body of the pump with the front board removed;F ig'. 2, is a vertical section through the pump vand boxes, &c.,showing their relative position.

The same letters indicate like parts in all the figures.

The nature of my invention consists in constructing a cheap anddurablevpump by so arranging the parts as to be able to form the pumpout of a plain scantling grooved on one side and covered with a plainboard, and forming a suitable box thereto, that shall keep perfectlypacked.

The pump is constructed in the following way: A plain piece of scantling(a) is grooved out on one edge as shown in the drawing; near the lowerend of this piece there is a hole (c) bored through the stick from thegroove to the opposite side which is covered by a valve (o) that isfastened in the groove which is a little enlarged at that point for thepurpose. .Onto the side of the mainpiece (a) opposite the groove anotherpiece (de) is fastened near the lower end and extending up far enoughfor forming a valve seat and chamber for the piston to work in; thispiece is cut out from the valve seat (0V) upward so as to form thechamber (e) for the piston to work in, and into this chamber, near thebottom, the hole c) from the opposite side opens. Ahole (f) is boreddown through the valve seat' (d),

which is covered by the valve (as shown in Onto the bottom of the. mainFig. 2). piece (as) there is a foot piece (g) of the same scantlingfastened, having a space (7L) between it and the bottom of the piece inwhich the valve seat (CZ) is formed tov admit the Water just abo-ve thebottom. On each side of these lowerparts a board is nailed that holdsthe stock (a) and chamber (c) firmly together.

The piston is a common, plain square rod having its lower end scarfedoff as shown in the drawing and just above that point it is notched inso as to form four similar inclined sides thus forming two truncatedpyramids, where the bases of these two pyramids join is nailed a pieceof leather (i) out thin at the corners, on the inside, its

edges being slit on the sides at (la) diagonally across so that when theupperedge expands the parts shall still overlap as shown in theVdrawing' Fig. 3 so as to allo-w it to expand `against the sides of thechamber and still make a tight joint. The pump handle (7c) is crotchedand embraces the rod and pump stock, being jointed in the usual way.

Having thus fully described the construc-V tion of my improved pump,what I claim therein as new and desire to secure by Let-V ters Patentis- Constructing the piston and packing as described, so as to cause itto pack out to the square corners as described while working either waywithout any accurate fittings, as set forth.

. GEO. PAGE.`

Witnesses: j

A. P. BRoWNE, J. P.l VAN TYNE.

